Excavating-bucket.



J. C. CRENSHAW.

EXGAVATING BUCKET.

APPLICATION FILED 0013.29, 1909.

966,313. Patented Aug. 2, 1910.

2 SHEETS-SHEET 1.

J. C. CRENSHAW.

EXUAVATING BUCKET.

APPLIOATION FILED 001229, 1909.

Patented Aug. 2, 1910.

2 SHEETS-SHEET 2.

wuamtoz To all whom it maycon'ctm:

JOHN CRI'IY CFENSHA'W, F AUGUSTA, GEORGIA.

EXCAVATING-BUGKET.

feeaare.

Specification of Letters Patent.

Patented Aug. 2, 191d.

. Application filed October 29, 1909. Serial No. 525,320.

Be it known that'I, JOHN Cnrrr CunnsHAW, a citizen of the United States, resid- 1 ing at Augusta, in the county of Richmond and State of Georgia, have invented certain new and useful Improvements in Excavating-Buckets, of which the following is a specification.

This invention relates to improvements in excavating buckets, and particularly to a bucket of the variety set forth in my co-pending application, filed the 19th day of June, 1909, Serial Number 503,210, and has for an object the arrangement of simplified means for correctly dumping the'bucket whenever desired.

Another object in view is the arrangement in an excavating bucket, of a lifting bail provided with a plurality of means for connecting the same to a bucket, said means including a pulley on each side of the bucket, and a supporting cable connected to the bucket engaging the pulley, which permits the bucket to be held in a substantially horizontal position when the draft cable is slackened.

y Another object in View is the arrangement of order,

m an excavating bucketvof a draft bail and lifting bail, together with a supporting cable designed to en age means which connect the lifting bai .with the draft bail,

\ whereby the bucket is held in a substantially horizontal position when the draft bail is taut, and permitted to dump when the draft bail is slackened.

With these and other objects in view the invention comprises certain novel constructions, combinations and arrangement of parts as will be hereinafter more fully described and claimed. f In the accompanying drawings: Figure 1 is a side elevation of an embodiment of the "invention. Fig. 2 is a top plan view of the "structure shown in Fig. 1. Fig. 3 is a front view of the bucket shown in a dumped position. Fig. 4 is a side elevation of the structure shown in Fig. 3.

Among the principal objects aimed to be accomplished in constructing a bucket embodying the. invention. is the provision of simple meansyvhich will not readily get out but will effectually operate for dumping the bucket at the desired time, and

which will prevent such dumpinguntil the desired time.

this character vided to which side connected In constructing a bucket of a housing or bucket is proare secured brackets on each by a cable which is slightly longer than a direct line between the brackets. Also positioned on each of the sides is what might be termed a lifting bracket or car to each of which is secured a chainthat extends upward and is secured to a l ftmg bail. To the liftin bail is secured a second pair of chains w lxich extend downward and have connected therewith at their lower ends pulleys which engage the respect ve cables, on each side of the bucket. Extending from the pulleys are cables which are connected with a draft bail so that when the draft bail is held a ainst movement by the draft cable the pu leys are also held against movement, and the lifting bail may 11ft the bucket and move the same as may be desired. When the bucket has reached any selected point and it is desired to dum bucket the draft cable is released an weight mitted to overbalance the bucket for mg the same. As the bucket is overbalanced the pulleys w1ll move along the cables upon whlch they are mounted, and take a positlon near the rear of the bucket for assisting in supporting the bucket while the same is pomtmg downward, the draft bail also movmg to a posltion opposite the top of the bucket so that the material being dumped can freely pass out the front.

In order that the clearly understood, an embodiment of. the same is shown in the accompan ingdrawlngs, in which 1 is the housing of the bucket which is preferabl formed by a blank, provided with suitab e perforat1ons for securmg rivets or bolts. The rear of the bucket is formed rounded at 2 and receives a suitable back of any desired kind which is preferably secured to the sides and bottom. The bucket is cut away at 3 in order to permit the excavating bit or knife 4 to be set back a short distance from the front of the bucket. v

Secured to each side 'of the, bucket are brackets or ears 5, 6 and 7. Connecting brackets 5 and 6 on each side of the bucket are cables 8 which are longer than a direct line between the 'ears, under tension the cable is raised above the the the

invention may be more' so that when brought a o with bail 13 are chains 16, on each side of desired place for 8 toward the rear the bucket, which extend downward to ears or'brackets 7, and pivotally engagle pins 17.

t y toward the rear of the bucket so that when chains 11 are released and all the wei ht of the bucket rests upon chains 16 the automatically dump, and the pulle s 9 will automatically move to the rear of t e cables 8 as more clearly shown in Fig. 3.

Secured to the front of the bucket near the cut-away portion 3 are brackets 18 through which extend pivotal pins 19. Pivotal pins 19 extend through brackets 18 a pivotal extension '20 of bail 14, and through the sides of the bucket. Bail 14 Brackets or ears 7 are set sligh has connected therewith a cable 21 of any desired kind, which acts as a draft cable for pulling the bucket longitudinally, and bail 13 has connected therewith a chain or cable 22 for actin as a lifting cable. 4

When it is desired to fill the bucket the same is lowered to any desired place, and then draft cable 21 pulled and when the bucket 'is thus dragged along the earth, member .4 enga es t e earth and scoops u suflicient thereo for fillin the bucket. AB ter the bucket has been ed the cable 21 is held stationary and the lifting bail 13 is raised and the bucket is then moved to any dumping, cable 21 being held taut. When the bucket has reached its dumping place cable 21 is loosened which will permit pulleys 9 totravel along cables and also throw the entire weight on ears This will overbalance the bucket, and cause the same to' automaticalIy-turn until the front is pointing downward.

WhatIclaim is: 1. In a device of the character described, the co bination with an excavating bucket, of ear secured to said bucket at the rear of its center of gravity, a supporting member, flexible means connecting said supplorting member and said ears, hauling mec anism secured to the excavating bucket at the front ofits center of gravity, means for connecting the supporting member and hauling mechanism, and a cable secured to the bucket engaging said means for causing the bucket to remam in an upright position during the time the hauling mechanism is under tension.

2. In a device of the character described, the combination with an excavating bucket,

ucket will' conve of a supporting member secured to the excavating bucket at the rear of its center of gravit a hauling mechanism connected with t e excavating bucket at the front of its center of gravity, means, includin a pulley, connecting the supporting mem r and the haulin mechanism, and a cable secured at its en s to said excavating bucket arranged to travel over said galley for assisting in counter-balancing t e bucket when tension is on the hauling mechanism.

3. In a device of the combination with an excavating bucket her, ears secured to said of a supporting mem bucket at the rear of the center of of the bucket, a flexible member connectmg' said supporting member and said ears, a draft member ivotall excavating buc et at t e front of the center of gravity, a flexible member connecting the supyiorting member and the draft ap Hence, 9. ca le secured to said bucket near t e ends thereof, and an anti-friction member mounted on the means connecting the su porting member and the draft appliance an engaging said cable for causing the bucket to remain inan upright position during the time the draft appliance is under tension.

connected with said 1 4. In an excavating bucket, a housing, a I

draft bail pivotally secured to the front of said housing, a cable on each side of.said

bucket secured thereto near the ends thereofi an elevating bail a chainconnecting sa elevatin' bail and said housing back of the center o gravity, asecond .0 ain on each side of said housing extending from said bail, anti-friction means connected with said second chains and engaging said cables for g motion from said second mentione chains to the front of said housing, and means connecting said anti-friction means and said draft bail for preventing from moving to the when the draft said anti-friction means rear of said housing, except bail is released.

5. In an excavating bucket, a housing, a draft bail, an elevating bail, a pair of chalns projecting from said elevating bail on each side of said bucket, means forsecurinE one of said chains on each side'of said buc st to said housing nearer the-rear end than the front end, a pulle connected to each of the other cha1ns, a ca le secured to each side of said bucket and passing over saidpulleys, and means connecting each of said pulleys and said draft bail for normally preventin said pulleys from moving-to the rear 0 said cables.

6. In an excavating bucket, a housing, a draft bail, an elevating bail, a comparatively long chain secured to said elevating bail on each side of said bucket, means for connecting the opposite ends of said chain to said bucket, a comparatively short chain extending from said elevating bail on 'each side of said bucket, a pulley connected with said cable providing a shifting support for each of said short chains, a cable connected said short chains. 10 with said pulley and with said draft bail In testimony whereof I aifix my signature for holding said pulley near the front of the in presence of two witnesses.

bucket wh e the draft bail is under tension, JOHN CRITY CRENSHAW.

and a cable on each side of said bucket se- Witnesses:

I cured to the bucket neareach end thereof Tnoms F. NAVE,

and passing over the pulley, said pulley and W. M. BUCHANAN. 

